The story factory___(open)since two years ago.

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Thestoryfactory___(open)sincetwoyearsago.Thestoryfactory___(open)sincetwoyearsago.Thestoryfactory___

The story factory___(open)since two years ago.
The story factory___(open)since two years ago.

The story factory___(open)since two years ago.
have been open
open的形容词还是open

has been open

has been openning
(have been + ing动词):现在完成进行式
"since"是现在完成进行式的标志性词语,
有因为“The story factory”是第三人称单数
所以应该填has been openning

has been opened
The story factory属于第三人称

opened

has been open

has been opened